ARM VERSION 1.2 Fiche technique Page 37
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
C and C++ Compilers
ARM DUI 0067D Copyright © 1999-2001 ARM Limited. All rights reserved. 2-19
the current directory, where
file.c
is the name of the source file stripped
of any leading directory names. The default file name can be overridden
with the
-o
option.
Note
You can use armasm to assemble the output file and produce object code.
The compilers add
ASSERT
directives for command-line options such as
ATPCS variants and byte order to ensure that compatible compiler and
assembler options are used when reassembling the output. You must
specify the same ATPCS settings to both the assembler and the compiler.
-fs
This option, when used with
-S
or
-asm
, interleaves C, or C++, source
code line by line as comments within the compiler-generated assembler
code. The output code is written to
file.txt
. A text file is output because
the resulting interleaved code cannot be input to the assembler.
Note
If you use this option you cannot reassemble the output code listing from
-S
.
2.3.7 Specifying the target processor or architecture
The options described in this section specify the target processor or architecture
attributes for a compilation. The compiler can take advantage of certain extra features
of the selected processor or architecture, such as support for halfword load and store
instructions and instruction scheduling.
Note
Specifying the target processor can make the code incompatible with other ARM
processors.
The following general points apply to processor and architecture options:
• The supported
-cpu
values are all current ARM product names or architecture
versions. There are no aliases or wildcard matching.
• If you specify an architecture name for the
-cpu
option, the code is compiled to
run on any processor supporting that architecture. For example
-cpu 4T
produces
code that can be used by either the ARM7TDMI
®
or ARM9TDMI
™
.
• If you specify a processor for the
-cpu
option, for example
-cpu ARM1020E
, the
compiled code is optimized for that processor. This enables the compiler to use
specific coprocessors or instruction scheduling for optimum performance.
- Developer Suite 1
- ARM Developer Suite 2
- Contents 3
- • Feedback on page xii 7
- About this book 8
- Preface 10
- Feedback 12
- Chapter 1 13
- Introduction 13
- 1.3 Linking compiled objects 17
- 1.4 Related utilities 18
- Chapter 2 19
- C and C++ Compilers 19
- 2.2 File usage 22
- 2.3 Command syntax 27
- Debug table format options 41
- Example 2-1 Double and float 46
- Chapter 3 57
- ARM Compiler Reference 57
- #pragma [no_]feature-name 58
- Example 3-1 Section naming 61
- Example 3-2 Pointer to packed 70
- Example 3-3 Packed structure 70
- 3.2 Language extensions 72
- Example 3-5 External access 75
- Example 3-7 Compiler error 76
- 0 1 2 3 83
- 4 5 7 8 83
- 9 10 11 12 83
- Bit number 85
- 3.4 Predefined macros 87
- Chapter 4 91
- -apcs /norwpi 95
- -apcs /rwpi 95
- The C and C++ Libraries 100
- -verbose 101
- 4.6.5 _get_lc_collate() 122
- Example 4-5 LC_COLLATE_DEF 125
- Example 4-6 LC_MONETARY_DEF 126
- Example 4-7 LC_NUMERIC_DEF 127
- 4.6.8 _get_lc_time() 128
- must return a pointer to a 128
- Example 4-9 LC_CTYPE_DEF 132
- Example 4-12 LC_TIME_DEF 134
- Example 4-13 LC_NUMERIC_DEF 136
- Example 4-14 LC_MONETARY_DEF 136
- Example 4-15 LC_INDEX_END 138
- Example 4-16 lconv structure 138
- __raise() 141
- Example 4-17 Heap_Descriptor 151
- Example 4-18 Heap_DescSize 152
- __user_libspace() 158
- __rt_stack_overflow_return 162
- __user_heap_extend() 163
- FILEHANDLE 168
- _sys_open() 168
- so that 172
- _clock_init() 175
- Mathematical functions 182
- Table 4-19 perror() messages 186
- Error Message 186
- 4.14 C library extensions 189
- Example 4-20 heapstats output 193
- -fpu none 196
- Chapter 5 199
- Floating-point Support 199
- -fpu vfp 200
- -fpu softvfp 200
- 25 22 19 18 206
- FZ RM Masks 206
- R RRR VFPVFP 206
- System ID Masks Sticky 208
- FPA onlyR R R 208
- Flag Operand type 217
- is declared in 221
- 5.4 The math library, mathlib 222
- 5.5 IEEE 754 arithmetic 228
- 63 52 5162 0 229
- Exp Frac 229
- Sample values 230
- Some sample 230
- 0x00800000 234
- 0x00400000 234
- 0x00000001 234
- Appendix A 237
- Via File Syntax 237
- A.1 Overview of via files 238
- A.2 Syntax 239
- Appendix B 241
- B.1 Implementation definition 242
- #include <stdio.h> 247
- Appendix C 249
- C.1 EC++ support 250
- C.2 Integral conversion 251
- Appendix D 257
- D.2 Internal limits 260
- Glossary 265
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